Contractor Profile
C4
C4 concentrates in commercial alteration in Denver (70% of its 66 segment-eligible permits), with secondary activity across 3 other segments. Its permit record in Denver spans 2012–2026. Reliable permit valuations total ≈$3.1M (across the 94% of filings with a valuation we can stand behind).
First permit: Jun 20, 2012 (5,183d ago)Latest permit: Mar 13, 2026 (169d ago)
The sales record
- Market
- Denver
- Active
- 2012–2026 · 14 yrs
- Licenses on file
- 0
- Reliable value
- $3.1M
- Coverage
- 94%
- Reliable filings
- 60
- Rank in Denver
- #374
- Permits (all-time, all segments)
- 71
- Filings 90d
- 0
- Filings 30d
- 0
- Latest permit
- Mar 13, 2026
Typical project size$35Ktypically $10K–$65K across 60 valued permits
Where they work
Primarily Commercial Alteration — 70% of 66 segment-classified permits
Firmographics
License & registration IDs on fileNo license records in the source data.
Direct contactNot in our data — we don’t fabricate firmographics.
Monthly activity
Oct ’250–1 permits/moMar ’26
permits per month permit value
Service area
Typical service area ~9 mi in Denver
The p90 footprint of where C4 has pulled permits in Denver — drawn from all 71 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- Denver71
Recent permitsLargest recent$250K· 14135 E 42nd Ave
Showing 20 of 66 permits by C4 in the indexed window · most recent first
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- Mar 13, 2026Commercial Alteration238 N BroadwayAlteration$19Kapplied Feb 20, 2026
- Dec 29, 2025Commercial Alteration14135 E 42nd Ave 50Alteration—applied Dec 18, 2025
- Oct 30, 2025Commercial Alteration14135 E 42nd AveAlteration$250Kapplied Jul 24, 2025
- Jul 26, 2023Commercial Alteration10498 E 49th AveAlteration$150Kapplied Jul 23, 2023
- Jul 12, 2023Commercial Alteration4590 N Geneva StAlteration$5Kapplied Jun 8, 2023
- Apr 13, 2023Residential Demolition4590 N Geneva StDemolition · Residential$120Kapplied Apr 7, 2023
- Aug 25, 2022Commercial Alteration625 S Havana StAlteration$70Kapplied Dec 22, 2021
- Dec 28, 2021Commercial Alteration5800 E East Evans Ave 100Alteration$210Kapplied Aug 16, 2021
- Oct 25, 2021Residential Demolition3254 N Navajo St 100Demolition · Residential$15Kapplied Oct 22, 2021
- Oct 5, 2020Residential Alteration7708 E Severn DrAlteration$20Kapplied Sep 16, 2020
- Apr 10, 2020Commercial Alteration2601 Blake StAlteration$100Kapplied Mar 10, 2020
- Jan 17, 2019Residential Alteration416 N Poplar St BasementAlteration$10K
- Dec 3, 2018Residential New (Single-Family)2518 N Irving St Det GarNew Construction Residential Sf$25Kapplied Nov 6, 2018
- Oct 18, 2018Residential Alteration2518 N Irving StAlteration$52K
- Jul 31, 2018Commercial Alteration7680 E 4th AveAlteration$5Kapplied Jun 8, 2018
- Jul 12, 2018Commercial Alteration206 N Red Cross WayAlteration$10Kapplied Jun 13, 2018
- Jul 12, 2018Commercial Alteration7701 E 1st PlAlteration$9Kapplied Jun 7, 2018
- Mar 23, 2018Commercial Alteration1590 Little Raven St 601 UnitAlteration$205K
- Oct 17, 2017Commercial Alteration8500 W Crestline Ave K1 UnitAlteration—applied Oct 4, 2017
- Sep 27, 2017Commercial Alteration8601 W Cross Dr B6-1 UnitAlteration$65Kapplied Sep 15, 2017
Mar 13, 2026 applied Feb 20, 2026 | 238 N Broadway | Commercial Alteration | $19K |
Dec 29, 2025 applied Dec 18, 2025 | 14135 E 42nd Ave 50 | Commercial Alteration | — |
Oct 30, 2025 applied Jul 24, 2025 | 14135 E 42nd Ave | Commercial Alteration | $250K |
Jul 26, 2023 applied Jul 23, 2023 | 10498 E 49th Ave | Commercial Alteration | $150K |
Jul 12, 2023 applied Jun 8, 2023 | 4590 N Geneva St | Commercial Alteration | $5K |
Apr 13, 2023 applied Apr 7, 2023 | 4590 N Geneva St | Residential Demolition Residential | $120K |
Aug 25, 2022 applied Dec 22, 2021 | 625 S Havana St | Commercial Alteration | $70K |
Dec 28, 2021 applied Aug 16, 2021 | 5800 E East Evans Ave 100 | Commercial Alteration | $210K |
Oct 25, 2021 applied Oct 22, 2021 | 3254 N Navajo St 100 | Residential Demolition Residential | $15K |
Oct 5, 2020 applied Sep 16, 2020 | 7708 E Severn Dr | Residential Alteration | $20K |
Apr 10, 2020 applied Mar 10, 2020 | 2601 Blake St | Commercial Alteration | $100K |
Jan 17, 2019 | 416 N Poplar St Basement | Residential Alteration | $10K |
Dec 3, 2018 applied Nov 6, 2018 | 2518 N Irving St Det Gar | Residential New (Single-Family) | $25K |
Oct 18, 2018 | 2518 N Irving St | Residential Alteration | $52K |
Jul 31, 2018 applied Jun 8, 2018 | 7680 E 4th Ave | Commercial Alteration | $5K |
Jul 12, 2018 applied Jun 13, 2018 | 206 N Red Cross Way | Commercial Alteration | $10K |
Jul 12, 2018 applied Jun 7, 2018 | 7701 E 1st Pl | Commercial Alteration | $9K |
Mar 23, 2018 | 1590 Little Raven St 601 Unit | Commercial Alteration | $205K |
Oct 17, 2017 applied Oct 4, 2017 | 8500 W Crestline Ave K1 Unit | Commercial Alteration | — |
Sep 27, 2017 applied Sep 15, 2017 | 8601 W Cross Dr B6-1 Unit | Commercial Alteration | $65K |
Other top Commercial Alteration contractors in Denver
- Ejcm1,134 commercial alteration
- Boots Construction Company821 commercial alteration
- Hensel Phelps Construction734 commercial alteration
- Provident Construction688 commercial alteration
- Coda Construction Group608 commercial alteration
- Saunders Construction510 commercial alteration
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